Climate

Rochester weather by month

Average highs, lows, rain and snow for every month, from 30 years of weather records.

Average temperatures

Best time to visit: May, August, September, when highs are mild and rain is lightest.

Month	High	Low	Rain	Snow	Wet days
January	33°F	19°F	2.5 in	27.4 in	20
February	35°F	20°F	2.1 in	23.1 in	16
March	44°F	27°F	2.5 in	17.9 in	15
April	57°F	37°F	3.0 in	3.0 in	13
May	69°F	48°F	2.9 in	0.10 in	12
June	78°F	57°F	3.4 in	0.00 in	12
July	83°F	62°F	3.6 in	0.00 in	11
August	81°F	61°F	3.3 in	0.00 in	10
September	74°F	54°F	3.2 in	0.00 in	11
October	61°F	43°F	3.2 in	0.10 in	14
November	49°F	34°F	2.8 in	8.1 in	15
December	39°F	25°F	2.7 in	22.3 in	18

NOAA U.S. Climate Normals 1991–2020, Rochester Gtr Intl Ap, Ny Us (4.4 mi away, 533 ft). Wet days: days with at least 0.01 in of precipitation.

What is the hottest month in Rochester?

July, with an average high of 83°F and low of 62°F.

What is the coldest month in Rochester?

January, with an average low of 19°F and high of 33°F.

When does it rain most in Rochester?

July is the wettest month, averaging 3.6 in of precipitation; the year totals about 35.2 inches.

Does it snow in Rochester?

Yes. Snowfall averages about 102 inches a year, mostly in January and February.

What is the best time to visit Rochester?

For mild weather (highs between 65°F and 85°F) with the least rain, May, August, September.

Where do these numbers come from?

NOAA’s 1991–2020 U.S. Climate Normals for the Rochester Gtr Intl Ap weather station, 4.4 miles from downtown: 30-year averages, not a forecast.